You do not want to skip the FIK website. Research their books and DVDs. Then you can buy those books and DVDs through Amazon or some other website that would be convenient for you.

Kendo World (KW) is, as far as I know, the only one international company that is officially recognized by All Japan Federation (AJKF) and translated several books of AJKF. KW has also translated many articles and books published by Japanese well-known kendo magazines, Kendo Nippon and Kendo Jidai.

If you belong to a local kendo club, you probably should ask your teacher if he/she has a copy of what you want. If your teacher does not have one, a kendo federation your club belongs to may have.